Fibre Processing
Biological agents break down non-cellulosic matter in flax stalks to liberate the individual bast fibres from the surrounding pectin and woody tissues. Enzymatic degumming acts as a targeted catalytic mechanism that operates under lower temperatures and shorter time frames than traditional alkaline boiling methods. This specific intervention relies on enzymes such as pectinases to hydrolyze the substances holding the fibre bundles together.
The resulting material maintains higher mechanical integrity because the harsh chemical conditions that degrade cellulose are avoided during this phase of production.
Process Control
Consistent application requires a steady concentration of active proteins within an aqueous bath maintained at a specific acidity level. Workers monitor the pH value and internal temperature to ensure the enzymes perform at their peak biological efficiency. If the bath conditions drift away from the optimal range the rate of pectin removal slows and the final bundle quality drops.
Technical specifications for this stage form part of the internal mill production log for every batch of processed stalks.
Quality Verification
Acceptance of the finished bast fibre depends on the residual gum content measured through precise weight loss analysis after the completion of the biological cycle. Buyers compare these lab results against the agreed specifications for raw material purity before the flax proceeds to mechanical scutching and eventual spinning. Lower residual levels indicate a higher degree of fibre separation which facilitates smoother yarn formation during the later weaving phases.
A successful operation yields a cleaner fibre surface while preserving the natural tensile strength of the individual strands.